Article Detail Hiroshima Day Answer: 6th August Similar Questions : 1. World Haemophilia Day Answer: 17 April 2. World Water Day Answer: 22 March 3. Indian Civil Service Day Answer: 21 April 4. International Human Rights Day Answer: 10 December 5. World Citizen Day Answer: 19 November 6. National youth day Answer: 12th January. It is celebrated on the birthday of swami Vivekanand ji 7. Nagasaki Day Answer: 9th August Read more from - Important Days of Year